Volt

DTC P1E29

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. The hybrid powertrain control module and the motor control modules share the power inverter module ignition voltage circuit, battery voltage circuits and chassis earth. The motor control modules and the hybrid powertrain control module are part of the power inverter module and are not serviced separately.

The auxiliary transmission fluid pump motor control module uses sensorless control to estimate motor speed and position from the phase current sensors.

The vehicle is ON or the power inverter module is awake.

The auxiliary transmission fluid pump motor control module detects a fault.

DTC P1E29 is a Type A DTC.

DTC P1E29 is a Type A DTC.

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

1. Verify that DTC P179A, P1E20, P1E21, P1E22, P1E27, P1E28, P1E1C, P1E1D, P1E1E, P1E1F, P1E1B, P1E29, P1E34, P1E35, or P1E36 is not set.

⇒	If DTC P179A, P1E20, P1E21, P1E22, P1E27, P1E28, P1E1C, P1E1D, P1E1E, P1E1F, P1E1B, P1E29, P1E34, P1E35, or P1E36 is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .

2. If the DTC is set, program the T6 power inverter module. If the DTC resets, replace the T6 power inverter module.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for Drive Motor Generator Power Inverter Module, also called the power inverter module, replacement, programming and set-up.